code: def testAintAdd(self):
      location = array.array("i", range(10))
      base = MPI.Get_address(location)
      addr = MPI.Aint_add(base, 4)
      self.assertEqual(addr, base + 4)
  
file_path: mpi4py/test/test_address.py
imports: from mpi4py import MPI
  import mpiunittest
  from arrayimpl import array, numpy
label_desc: Use image node_id 5 for calling the TestAddress obj's underlying member method code with example usage: obj.testAintAdd() without return types